Removable Dry Hot Water Bottle, XL Relax and soothe muscle pain with this dry hot water bottle, filled with rice grains. Instructions for use: To soothe with heat: Remove the cover from the hot water bottle Place the cushion in the microwave for 30 seconds Enjoy 30 to 40 minutes of warmth If you don't have a microwave: place the hot water bottle on a non-electric radiator for 30 minutes or directly in your oven for 10 minutes at 80°C To soothe with cold: Simply place your hot water bottle in the freezer. Care instructions: Machine wash the cover at 30°C. Do not tumble dry. Dimensions: 32 x 21 cm